How do I get the picture size with PIL?

Question

How do I get a size of a pictures sides with PIL or any other Python library?

Answer 1

from PIL import Image  im = Image.open('whatever.png') width, height = im.size 

According to the documentation.

Answer 2

You can use Pillow (Website, Documentation, GitHub, PyPI). Pillow has the same interface as PIL, but works with Python 3.

Installation

$ pip install Pillow 

If you don't have administrator rights (sudo on Debian), you can use

$ pip install --user Pillow 

Other notes regarding the installation are here.

Code

from PIL import Image with Image.open(filepath) as img:     width, height = img.size 

Speed

This needed 3.21 seconds for 30336 images (JPGs from 31x21 to 424x428, training data from National Data Science Bowl on Kaggle)

This is probably the most important reason to use Pillow instead of something self-written. And you should use Pillow instead of PIL (python-imaging), because it works with Python 3.

Alternative #1: Numpy (deprecated)

I keep scipy.ndimage.imread as the information is still out there, but keep in mind:

imread is deprecated! imread is deprecated in SciPy 1.0.0, and [was] removed in 1.2.0.

import scipy.ndimage height, width, channels = scipy.ndimage.imread(filepath).shape 

Alternative #2: Pygame

import pygame img = pygame.image.load(filepath) width = img.get_width() height = img.get_height()